# Parts-per-billion-level detection of hydrogen sulfide based on doubly resonant photoacoustic spectroscopy with line-locking

> Research article (Photoacoustics, 2022) · cited 39× · AI/ML

**Wikidata**: [openalex:W4311983077](https://www.wikidata.org/wiki/openalex:W4311983077)  
**Source**: https://4ort.xyz/entity/parts-per-billion-level-detection-of-hydrogen-sulfide-based-on-doubly-resonant-photoacoustic-spectroscopy-with-line-lock